Net Loss Per Share - Additional Information (Detail)			9 Months Ended
	Sep. 29, 2017 $ / shares shares	Aug. 15, 2016 shares	Sep. 30, 2017 $ / shares shares	Dec. 31, 2016 shares
Earnings Per Share [Line Items]
Reverse stock split ratio		0.25
Common stock, shares authorized | shares		100,000,000	100,000,000	100,000,000
Reverse stock split, effective date		Aug. 17, 2016
Reverse stock split, description			Common stock at a ratio of one (1) share for every four (4) shares outstanding, so that every four (4) outstanding shares of common stock before the Reverse Split represents one (1) share of common stock after the Reverse Split.
Series B Preferred Stock [Member]
Earnings Per Share [Line Items]
Number of shares designated in preferred stock | shares			3,000
Preferred stock, conversion price per share | $ / shares	$ 1.14		$ 1.14
Preferred stock, dividend rate	10.00%
Preferred stock threshold consecutive trading days	20 days
Trading price of common stock exceeds conversion price, percentage	400.00%
Maximum allowable ownership percentage in issued and outstanding common stock after conversion	19.99%
Beneficial ownership percentage of common stock after conversion	9.99%
Period of notice prior to preferred stock conversion	61 days
Offering [Member] | Series B Preferred Stock [Member]
Earnings Per Share [Line Items]
Number of shares designated in preferred stock | shares	5,500
Preferred stock, stated value per share | $ / shares	$ 1,000
Preferred stock, conversion price per share | $ / shares	$ 1.14
Preferred stock, dividend rate	10.00%
Preferred stock, dividend payment terms			The holders of Series B Preferred Stock are entitled to receive cumulative dividends out of funds legally available thereof at a rate of ten percent (10%) per annum, payable (i) when and as declared by the Board of Directors, in quarterly installments on March 1, June 1, September 1 and December 1, and (ii) upon conversion into Common Stock with respect the Series B Preferred Stock being converted.